Thirty-Six Commanderies: A Number Without a List

One sentence: 'He divided the world into thirty-six commanderies, and each set up a governor, a commandant and an inspector' (分天下以為三十六郡，郡置守、尉、監). The number is there. The list is not. The sentence stands between an argument over whether to enfeoff the emperor's sons and a run of measures — renaming the people, collecting weapons, standardising weights, axle-widths and writing. Thirty-six commanderies are one clause in a paragraph, not an administrative table.

One Sentence, Three Officers

In the twenty-sixth year (221 BCE) of the First Emperor's reign, the Shiji reports, the chancellor and others asked that the emperor's sons be made lords; the commandant Li Si argued against it — 'setting up lords is not expedient' — and the emperor agreed with Li Si. Then comes the sentence: the world divided into thirty-six commanderies, each with a governor, a commandant and an inspector. The number is followed at once by the names of three offices, not by the names of commanderies. That year also records the renaming of the common people as 'black-heads', the melting down of weapons into twelve bronze men, the standardisation of weights and measures, axle-widths and writing, and the four limits of the realm. In the same entry 120,000 wealthy households were moved to Xianyang.

But the thirty-six do not start from nothing. Earlier in the same chapter commanderies are already being founded: a southern commandery, then Hedong, Taiyuan and Shangdang, then Sanchuan; and in the fifth year 'the Eastern Commandery was first established' (初置東郡). The thirty-six of 221 are a count made at unification, not the first creation of commanderies in Qin: commanderies were a Qin institution long before the empire.

More Were Added

In the thirty-third year (214 BCE), convicts, live-in sons-in-law and merchants were sent to seize the Lingnan lands, 'and Guilin, Xiang and Nanhai were made commanderies' — three more, in what is now the far south. In the same year, in the northwest, the text says thirty-four counties were established along the river — counties, not commanderies. In the thirty-fourth year the officers who had judged unfairly were sent to build the Great Wall and the southern frontier, and Meng Tian crossed the river to take Gaoque, Yangshan and Beijia, building forts and barriers to drive out the Rong. By the end of the reign Qin had more than thirty-six commanderies; the Shiji simply never gives a new total.

The chapter's closing appraisal quotes Jia Yi: 'Qin annexed the feudal states and their thirty-odd commanderies east of the mountains' (山東三十餘郡). Thirty-odd east of the mountains is not the same measure as thirty-six for the whole world: one counts a region, the other counts an empire. The figures shift with the angle of view — which is why this article does not write that 'Qin had only thirty-six commanderies'. Nor does the Geography offer a single figure: its section on the Qin region says that region was a third of the world, less than three-tenths of its people, and six-tenths of its wealth.

The Eastern Han Reckoning

The Han shu's geography closes with an essay: 'Originally the Qin capital region was the capital district, and the rest of the world was divided into thirty-six commanderies. When Han arose, because the commanderies were too large, they were gradually opened up again and kingdoms were set up as well. Emperor Wu extended the three frontiers. Thus Gao Zu added twenty-six, Wen and Jing six each, Wu twenty-eight, and Zhao one, until the reign of Xiao Ping: in all one hundred and three commanderies and kingdoms' (本秦京師為內史，分天下作三十六郡…凡郡國一百三). Read literally, the capital district stands apart and the thirty-six are what lay outside it; the Han figures add up exactly — 36 + 26 + 6 + 6 + 28 + 1 = 103. The same essay records how the Han redrew the names — Jiaozhi in the south and Shuofang in the north under Emperor Wu, Yong renamed Liang and Liang renamed Yi — and posted inspectors over the provinces.

But the body of the Geography is not a table of Qin commanderies. It registers the commanderies and kingdoms of the late Han one by one, each with its households, population and county names — '19,572 households, 682,468 souls, twelve counties', and the next '235,101 households, 917,822 souls, twenty-four counties' — and when it speaks of Qin it does so in a section on regional customs and astrological fields. A reader hoping to copy a list of the thirty-six out of this page will not find one.

Where the List Comes From

So 'which thirty-six' is a modern reconstruction: work back from the Han commanderies, order the Shiji's dates, add sealed clay, bamboo slips and walled sites. The reconstructions do not agree — whether the capital district counts among the thirty-six, when Jiuyuan and Nanhai were founded, whether Minzhong existed at all, are all handled differently. The materials used lie outside these two pages — sealed clay, wooden slips, walled sites — and are not part of the evidence here. This article sets out no such table and treats none of them as settled.

What can be said is narrower: in the year of unification Qin claimed thirty-six commanderies, each with a governor, a commandant and an inspector; more were added afterwards; and by the time an Eastern Han writer summed it up, the Han had 103. Between the number and the names lies a gap with no roster in it — not because the roster is lost, but because these two books never wrote one: a silence, not a gap in the record.

What Is Not Here

The gaps: the Shiji names no commanderies; the Geography supplies no Qin table; neither page gives Qin's boundaries, seats or populations — the households and mouths in the Geography are late Han figures and cannot be used for Qin; and no sentence says which commanderies the thirty-six were. As for the grand argument that commanderies replaced enfeoffment, these two pages are about a number and a succession of changes, and this article does not extend them into that argument.

Thirty-six commanderies, then, are a number from the beginning of Qin, not a list; more were added later, and the Han redrew the map again; the 'thirty-six commanderies table' available today is a reconstruction, and the reconstructions differ. The thing worth remembering from this page is not the table but the fact that the number exists and the list does not — many a tidy institutional figure in the sources is, in the original, just a figure.

Related reading：The Market North of the Palace: Liao's Southern Capital · A Thousand Buddhas on the Avenue: Luoyang's Image Procession · Ruts and Carriage Boxes: Roads and Chariots at Shang Yinxu